Vulnerability · Published Sep 13, 2023 · Assigned by redhat
CVE-2023-4155Sev-es / sev-snp vmgexit double fetch vulnerability
Medium 5.3
In plain English
A medium-severity security flaw in Fedora from Fedora. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.2%top 93.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A flaw was found in KVM AMD Secure Encrypted Virtualization (SEV) in the Linux kernel. A KVM guest using SEV-ES or SEV-SNP with multiple vCPUs can trigger a double fetch race condition vulnerability and invoke the `VMGEXIT` handler recursively. If an attacker manages to call the handler multiple times, they can trigger a stack overflow and cause a denial of service or potentially guest-to-host escape in kernel configurations without stack guard pages (`CONFIG_VMAP_STACK`).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bpftool | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-abi-stablelists | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-core | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-cross-headers | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-core | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-modules | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-modules-extra | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-doc | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-headers | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-modules | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-modules-extra | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-tools | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-tools-libs | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-core | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-modules | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-modules-extra | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | perf | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | python3-perf | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| Debian:12 | linux | 6.1.52-1 | DEBIAN-CVE-2023-4155 |
| Debian:12 | linux | 6.1.52-1 | DSA-5492-1 |
| Debian:13 | linux | 6.4.11-1 | DEBIAN-CVE-2023-4155 |
| Debian:14 | linux | 6.4.11-1 | DEBIAN-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux | 5.15.0-86.96 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux | 5.15.0-86.96 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1047.52 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1047.52 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 6.2.0-1013.13~22.04.1 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 6.2.0-1013.13~22.04.1 | USN-6412-1 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1049.56 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1049.56 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | 6.2.0-1014.14~22.04.1 | USN-6412-1 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | 6.2.0-1014.14~22.04.1 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1049.56.1 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1049.56.1 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | 6.2.0-1014.14~22.04.1.1 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | 6.2.0-1014.14~22.04.1.1 | USN-6412-1 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1044.52 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1044.52 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | 6.2.0-1016.18~22.04.1 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | 6.2.0-1016.18~22.04.1 | USN-6412-1 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1044.49 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1044.49 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1030.35 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1030.35 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | 6.2.0-34.34~22.04.1 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | 6.2.0-34.34~22.04.1 | USN-6412-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1040.43 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1040.43 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1043.49 | USN-6445-1 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1043.49 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1044.49 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1044.49 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-86.95 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-86.95 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | 6.2.0-1014.14~22.04.1 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | 6.2.0-1014.14~22.04.1 | USN-6412-1 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1037.37 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1037.37 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | 6.2.0-1011.11 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | 6.2.0-1011.11 | USN-6466-1 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1018.18 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1005.5 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1021.21 | USN-6343-1 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1021.21 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1045.51 | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1045.51 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1040.43 | USN-6416-3 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1040.43 | UBUNTU-CVE-2023-4155 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2023-4155 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1025.29 | UBUNTU-CVE-2023-4155 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | kernel | see references |
| Red Hat | Red Hat Enterprise Linux 6 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
| Fedora | Fedora | see references |
Weakness: CWE-367 · Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
References
- https://access.redhat.com/security/cve/CVE-2023-4155 vdb-entry, x_refsource_REDHAT
- RHBZ#2213802 issue-tracking, x_refsource_REDHAT